FDR once said there's nothing to fear but fear itself. Well, fear is pretty darn scary. Especially if we're talking about the SINESTRO CORPS, the evil, frightening opposite number to our heroes wearing the green rings. Taking point is, fittingly, Sinestro, Hal Jordan's former mentor and a former Green Lantern. But he's not the only one wielding the yellow power. You've seen the Green, Red and Orange. Click below to learn more about Sinestro's gang, presented in frightening detail by the very talented Doug Mahnke. If you dare, that is.